This striking postage stamp from the Republic of China (Taiwan) features the Great Mormon Butterfly (Papilio memnon), beautifully illustrated with open wings against a warm yellow background adorned with stylized floral motifs. The butterfly’s vivid pattern — black and grey upper wings with white and red accents — captures one of East Asia’s most admired species. Issued during the mid-20th century as part of a definitive or commemorative series celebrating Taiwan’s rich natural fauna, the stamp highlights the country's appreciation of biodiversity and artistry in philately. Its clean typography and traditional Chinese script make it a fine example of Taiwan’s classic nature-themed issues.